�e correlation between increasedWest African monsoon rainfall and anomalously low surface pressure over the Sahara is well established in observations and global climatemodels, and has been interpreted as a strengthening of the Saharan Heat Low (SHL) during wet monsoon years.�is study uses two atmospheric reanalysis datasets to examine interannual variability of Sahel rainfall and the shallow S...

5 C K H u n n ~ r f o r dJ U'ilill M a ~ ~ a n e n ~ e n i latitudinal averages obscure pertinent spa28. 141 ( 1964). I. I . I . LlcMillan. J. W~idl . .Mana,cement 28. 702 6, R , ,4, ~ l J , E~,rp,~ h ~~25 (197 1). ~ 1 , , tial and temporal variationi. Although the ~ ~ ~1 7 . (1964) 7. H . W. Bcnnetts. C . J . Cndcruood , F.. I Shier. precipitation pattern depends most 2. W. .I. F ranc~s , ibid...

Abstract. Enhanced summer insolation over North Africa induced a monsoon precipitation increase during the mid-Holocene, about 6000 years ago, and led to widespread expansion of lakes wetlands in present-day Sahara. This is documented paleoenvironmental sediment records, but spatially sparse often discontinuous records provide only fragmentary picture. Previous simulation studies prescribed eit...

Regular rain and fogwater sampling in the Podocarpus National Park, on the humid eastern slopes of the Ecuadorian Andes, along an altitude profile between 1960 and 3180 m, has been carried out since 2002. The samples, accumulated over about 1-week intervals, were analysed for pH, conductivity and major ions (K, Na, NH+4 , Ca 2+, Mg2+, Cl, SO 4 , NO − 3 , PO 3− 4 ). About 35% of the weekly sampl...